Important This is intended for airsoft purpose only. Do not use it on any sort of firearms. . Description: A RAS handguard that replace the original one, so that user can install vertical foregrip or flash light with any mount that fit a Picatinny rail. Will need spacer to fit on Tm M870 tactical. . Extra material required: none . Extra modification required: none/reversable . Extra tools required: You may want to buy the disassemble tool to remove part #870T-6 Step to install: (Please refer part number to TM user manual)